This material is a vegan alternative to leather, with a very similar appearance and excellent resistance. A 100% organic cotton canvas, coated with P.U., cornstarch, and ricinus oil. 54 % bio based.Specifications:Material:- Upper: C.W.L. (organic cotton coated with a resin fromP.U., corn starch and ricinus oil)- Panels: C.W.L. and coated canvas- Logo V: Amazonian rubber (26%)- Insole: Sugar cane (55%), organic cotton (19%) and others (12%)- Outsole: Amazonian rubber (31%), silica (31%), synthetic rubber (19%) and others (19%)- Lining: Tech (100% recycled polyester)- Laces: Organic cotton (100%)